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Race Prep Miata race-only chat. 949 Racing - Rim & tires

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Old 01-15-2016, 10:16 PM   #601
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Excellent read! Have you started a pool.for how long this new motor will last?
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Old 01-27-2016, 10:19 AM   #602
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Won my first TTE event! Went down to Roebling Road last weekend, despite the weather. This was my first event at this track and first track event on Hoosiers as well. TTE had 5 cars both days as well.

Saturday was wet, cold, and outright sketchy on track. It wasn't the ideal situation to learn the track lol. It was mostly dry by the 3rd session of the day, still sub 35*, and I put down a 1.27.5xx on the RS3s, so swapped over to the R7s for session 4 & 5. The amount of grip the R7s had over the RS3s was WAYYY more than I thought they would have, I was honestly overwhelmed lol. I don't remember my times from the 4th session, but the last session was pretty memorable. I was sitting 2nd, leader had a 1.24.9xx and I knew I could get well below that, but wasn't sure how much time he would pick up either. I'm a gridded a few cars back from him, but I see him get a point by after green coming into T1. Look to my left as I'm in T1/T2 and see him sitting off track. "Alright here's my chance!" I'm thinking. Do two decent laps, still sloppy and lots of time out there. I slow down on lap 3 from a few mistakes, then notice a silver E36 nearing me. By the T9 coming onto the front straight he's behind me, I stay WOT because surely this TTC/TTD BMW can get past me easy. As he strolls on past me I read the letters on the side of his car..... TTE "HOW THE **** IS HE IN MY CLASS?!" . He puts multiple cars on me before T1, I close a couple in T1/T2 and by T3 I close the gap completely "ah, that's why". But holy bullet car, I need more power! So, we get done with the last session, check the live results on my phone...... 1.24.3xx HELL YEAH I beat Haff that was in 1st, but...... the E36 ran 1.24.0xx AND Parkhurst in an E30 came out of no where and rana 1.23.5xx. It was a cool exchange of positions in TTE and I end up in 3rd for Saturday. Still happy because there's solid competition in my class and honestly that's what I want right now.

Sunday comes, feeling a little more confident with a couple of dry sessions under my belt I figure I can pick up some more time. First session was cold and had some traffic issues. Second session was great, gridded right behind Haff(the fellow who was leading on Saturday but went off on last session) and I was able to follow his line. This confirmed my own line and I knew I could pick up the pace. Got in front of him on lap 3 and had two good runs for lap 4 and 5, lap 5 being my fastest of a 1.23.8xx:



Feedback welcome I know there is at least 1.5-2 seconds in the car as is, I just have to get there myself.

This lap was good enough to hold onto 1st for the day. The E36 ended up having a mechanical by session 2, which was a lucky break for me. Though, I did want to see if I could beat him in the same good session. The E30 had another driver in it in the morning and then had a mechanical before the other could get a session in.

Sorry for the short book, I just wanted share my story and get some feedback.

TL;DR - Learned a bunch, had a lot of fun competition in TTE, won on Sunday.
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Old 01-27-2016, 10:24 AM   #603
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Won my first TTE event!
Congrats!

I was down at MSR Houston this weekend with NASA Texas and also took the win in TTE both days. More importantly, I reset the track record a few times over the weekend. I've not got four track records here in Texas. Not really impressive, frankly; there's still plenty of opportunity for a decent driver in a well prepared car to lower them all by a lot. My car was never really built for TTE and I'm not even on Hoosiers. Anyhow, I shouldn't talk **** about my own "success".

Here's the fastest session of the weekend, I think lap two or three is the fastest:



And here's my oh-crap moment of the weekend. Look ahead, people, don't get fixated on a corner or car...



robert
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Old 01-27-2016, 10:33 AM   #604
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Won my first TTE event!
congrats man, hope you got some contingency tires. i should have loaned you my spare Aim smarty cam. i must have forgotten to mention it because my brain was frozen.
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Old 01-27-2016, 12:29 PM   #605
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Originally Posted by robertcope View Post
Congrats!

I was down at MSR Houston this weekend with NASA Texas and also took the win in TTE both days. More importantly, I reset the track record a few times over the weekend. I've not got four track records here in Texas. Not really impressive, frankly; there's still plenty of opportunity for a decent driver in a well prepared car to lower them all by a lot. My car was never really built for TTE and I'm not even on Hoosiers. Anyhow, I shouldn't talk **** about my own "success".

Here's the fastest session of the weekend, I think lap two or three is the fastest:



And here's my oh-crap moment of the weekend. Look ahead, people, don't get fixated on a corner or car...



robert
Nice! Looks like you were running at a really good pace, obviously with a new track record. I believe I was a second off the track record this weekend.

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congrats man, hope you got some contingency tires. i should have loaned you my spare Aim smarty cam. i must have forgotten to mention it because my brain was frozen.
Thanks! I did get two tires, took some of the sting off the cold weekend Hah, yeah my gopro hero 1 is past it's prime. I'll be looking into some data acquisition soon.
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Old 01-27-2016, 02:18 PM   #606
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Nice! Looks like you were running at a really good pace, obviously with a new track record.
It was okay. I struggled to get a clean lap the whole weekend. I get buried in a bunch of TT2 and TT3 cars, which just doesn't mesh well with my lower powered car, particularly at this track. I bet I got four or five truly clean laps the whole weekend. I know I should have run in the high 47s, at least. And I'm on RC-1s when I could be on Hoosier R7s, so... but yeah, thanks

robert
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Old 01-27-2016, 03:01 PM   #607
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It was okay. I struggled to get a clean lap the whole weekend. I get buried in a bunch of TT2 and TT3 cars, which just doesn't mesh well with my lower powered car, particularly at this track. I bet I got four or five truly clean laps the whole weekend. I know I should have run in the high 47s, at least. And I'm on RC-1s when I could be on Hoosier R7s, so... but yeah, thanks

robert
I was in the same boat with traffic. The weather was iffy so there were several TTB-TT2 guy running on street tires when I was on the R7s. I probably only got probably 10 clean laps as well, but I was learning the track so it didn't matter all too much

Maxxis contingency is pretty nice, but I'm not sure I could win regionally with them. Though, I haven't researched it completely.
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Old 01-27-2016, 04:27 PM   #608
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Maxxis contingency is pretty nice
It is! But I realized yesterday that we almost always have five TTE entries, and unless someone we don't know shows up and starts beating me, I should be able to win four Hoosiers a weekend... so.... next set of tires will probably be Hoosiers. Hopefully I've done the math right!

robert
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Old 01-27-2016, 04:37 PM   #609
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It is! But I realized yesterday that we almost always have five TTE entries, and unless someone we don't know shows up and starts beating me, I should be able to win four Hoosiers a weekend... so.... next set of tires will probably be Hoosiers. Hopefully I've done the math right!

robert
If you're winning now on RC-1s and you're not changing your setup to run R7s..... yeah I think you'll be in good shape

Several TT guys in my area running 205-ish R7s on miatas claim 10 or less great heat cycles, then 10 more good heat cycles, then it depends on if you scrubbed/cured them properly after that 5-15 more "ok" cycles. 1 session = 1 heat-cycle in this case. This is all hearsay and no empirical data to back it up I didn't scrub mine properly(no 24hr cure), I'll let you know when they turn to ****
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Old 01-27-2016, 10:48 PM   #610
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Here's a little later in Robert's Oh $hit Moment.
A new lesson for me. GET OFF LINE before slowing down.
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Old 01-28-2016, 12:30 AM   #611
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Quote:
Originally Posted by robertcope View Post
Congrats!

I was down at MSR Houston this weekend with NASA Texas and also took the win in TTE both days. More importantly, I reset the track record a few times over the weekend. I've not got four track records here in Texas. Not really impressive, frankly; there's still plenty of opportunity for a decent driver in a well prepared car to lower them all by a lot. My car was never really built for TTE and I'm not even on Hoosiers. Anyhow, I shouldn't talk **** about my own "success".

Here's the fastest session of the weekend, I think lap two or three is the fastest:


robert
Is there a big bump in that last fast LH? It looks like the rear might be bottoming there, the reason for the rear stepping out. Nice line and laps. Haven't driven that track but it looks more or less like I would drive it. Only need late-ish apxes in a few spots, but mostly early entry, shortest distance autcross lines.
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Old 01-28-2016, 07:55 AM   #612
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Is there a big bump in that last fast LH? It looks like the rear might be bottoming there, the reason for the rear stepping out. Nice line and laps. Haven't driven that track but it looks more or less like I would drive it. Only need late-ish apxes in a few spots, but mostly early entry, shortest distance autcross lines.
Thanks! Do you mean around the big carousel/sweeper? I wouldn't be surprised at all if I was on the bumpstops around there and there are definitely bumps through it; it also crowns and falls away towards the outside edge. I really think I need more spring (currently 700/400) but I can't bring myself to change a setup that is working pretty well. Plus, if I go for more springs, I want to upgrade to helper springs, and then the new gen Xidas, and then...

robert

Last edited by robertcope; 01-28-2016 at 10:54 AM.
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Old 01-28-2016, 01:51 PM   #613
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Last long left before the S/F. Rear end steps out in the same spot every lap. Just wondering what the cause was. If running 205 RC-1, I'd say 700/400 is OK. Bump to 800/500 is running 225 RC-1's. That's assuming big sway bars. If stock sway bars then 800/400 for 205 RC1, 900/400 for 225 RC1 and 1000/400 for 205 SM7.
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Old 01-28-2016, 02:00 PM   #614
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Last long left before the S/F. Rear end steps out in the same spot every lap. Just wondering what the cause was.
Yup, that's the one I really need to walk that part of the track.

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If running 205 RC-1, I'd say 700/400 is OK. Bump to 800/500 is running 225 RC-1's. That's assuming big sway bars. If stock sway bars then 800/400 for 205 RC1, 900/400 for 225 RC1 and 1000/400 for 205 SM7.
I'm on a RB front bar, MSM rear bar, and 225 RC-1s (on 15x9) right now. Probably moving to 205 R7s sooner or later (at least to test). Sounds like I should at least bump to 800/500 before doing that.

robert
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Old 01-28-2016, 03:25 PM   #615
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If running 205 RC-1, I'd say 700/400 is OK. Bump to 800/500 is running 225 RC-1's. That's assuming big sway bars. If stock sway bars then 800/400 for 205 RC1, 900/400 for 225 RC1 and 1000/400 for 205 SM7.
Awesome, thanks for reconfirming this.


Robert's car and mine are oddly similar.....

I need to bump up to 800/500 with my RB front bar and MSM rear bar as well. However, I'm seriously considering going back to stock 22mm front/11mm rear bars, stock intake, and run a MS3 on e85(205 R7s). Then, pray I can make 145rwhp on an egojet. Realistically though I highly doubt I can hit that number with my unopened 82k mi BP4W. Unless, of course, you guys give me some crazy ideas on how to get there without rebuilding and blue-printing the whole engine.
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Old 01-29-2016, 01:42 AM   #616
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I don't think I posted this video here. It's the most recent TTE event that I've done.

Finished 1st of 6 and set the track record but it is the first time this track has been run backwards so there were no existing records. The first session of the day I only got one clear lap so not much of a chance to learn the track. Ran in the second session and that time held out for the day.

Car was not configured very well and I encountered traffic on my fast lap so that record will likely fall the next time this config gets run. I was also having trouble with inside wheel spin exiting right handers, but I think I'll have that fixed soon.

Car Setup:

TTE Appendix C Reclass of 128WHP and 2355lbs
Actual Power/Weight: 124WHP and 2390lbs (first time being weighed since cage was finished and lots of other weight removed/added)

+3 205 Hoosier R7
+5 VMaxx Track Pack Coilovers
+2 FM Sway Bars and Supermiata Endlinks
+3 Torsen 4.1
Remaining 6 points were unused.

Fast lap starts at 6:13, this is also the Start/Finish location for timing.

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Old 01-29-2016, 03:43 PM   #617
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nasaforums.com ? View topic - TECHNICAL BULLETIN-Mazda Miata Driver Seat Floor Pan 1-29-16
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Old 01-29-2016, 03:44 PM   #618
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Thank god I'm not a tall driver, I guess. I don't understand why they need to take another 100lbs?

robert
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Old 01-29-2016, 03:45 PM   #619
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Thats messed up. Also limiting it to the trans tunnel sucks too. Because most seats you have to bash the trans tunnel in anyways.
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Old 01-29-2016, 03:47 PM   #620
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For those who haven't seen the facebook page yet -

Quote:
Originally Posted by Greg DoucheNozzle
TECHNICAL BULLETIN 1-29-16
Mazda Miata Driver Seat Floor Pan

Appendix B—Technical Bulletins for Specific Models/Items

Mazda Miata ('90-'05):
The driver’s side floor pan may be modified to accommodate larger/taller drivers. All modification shall be contained between the transmission tunnel, driver’s side rocker, rear bulkhead and no more than 24” forward of rear bulkhead. The modification shall not extend below the factory floor stiffener/frame rail. The steel used in the modification shall be no thinner than .060”. All modifications shall be welded in place. This modification shall serve no other purpose other than seating position.
The assessment for having this modification will be an additional 100 lbs of weight added to the vehicle's base weight (or 100 lbs added to a Dyno Re-class if the vehicle is using a Dyno Re-class instead of the base classing table).
I would have really liked to install this in my car. But nope.
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